Specification: Printing method: Direct Thermal Resolution: 1.8dots/mm(203DPI) Max. Print speed: 150mm/s Max. Print width: 4.1inch Support printing roll label and fanfold label Connect port: USB, Bluetooth Bluetooth: For windows, smartphone. Doesn’t support MAC OS. Pls connect USB for your MAC. When you install driver for MAC, please choose “Label Printer” as the device not BY245(Page 16 I on the user manual of JD268 and JD268BT) Package Content: 1 X Bluetooth Printer with Label Holder 1 X USB Flash Disk with driver installation 1 X User Manual 1 X Power Adapter & Cable 1 X USB cord 1 X Type C Convertor 50X sheets of 4X6'' test labels Varying Compatibility: When working with PC, takes any Thermal Direct Labels that have width between 1.57’’ and 4.1’’. Smartphones do not support customized label size and editing contents. Use the app “FBA Print” for 4’’x6’’ or 4’’x7’’ shipping labels (USPS, UPS, FedEx, DHL) Connection: (Isn’t compatible with Chrome book, Linux.) For windows: Bluetooth connection or USB connection For Mac: Only USB connection For Android: Download APP “FBA print”, connect the Bluetooth on APP, and then Print via APP (Not compatible with Samsung Galaxy) For iOS: Cannot import PDFs directly, send files via social media. For iPads, be sure to place tablet vertically to print. Usage Tips: 1.Please calibrate the printer before printing: Feed the labels, long press the feed button, and release your finger after hearing one beep, it will load two labels then stop on the tear-off place, then the printer is ready to print. 2.The pin number to connect the Bluetooth is 0000. 3.Don’t choose the printer showed “driver is unavailable” to print, it is not right printer, you need to choose the printer named ”Label Printer”